Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7882ba2fd08f9c5…

MALICIOUS

PDF

79.5 KB Created: 2021-03-21 02:26:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 628b1019d584aea9e6a6a83e14dfb646 SHA-1: 33a7054167e5a974e936390a5fbeee5a183f1460 SHA-256: e7882ba2fd08f9c5c011b6dd58735f06b5ac417878b94115faf67212c9f57856
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV and an ML classifier, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to game items, and the PDF structure itself is flagged for suspicious object handling. No scripts were extracted, but the presence of external URLs indicates a likely attempt to download further payloads or conduct phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://maypoin.ru/wix?keyword=bl2+pearlescent+vs+legendary
    • https://cdn.sqhk.co/mivoteloxip/dibghzE/toy_smash_cube_blast.pdf
    • http://mofemaruwek.sportsontheweb.net/82100132911.pdf
    • http://lojuxaga.mywebcommunity.org/pewotikenedekivumiparowaw.pdf
    • http://dawexefif.getenjoyment.net/hdfc_life_blue_chip_fund.pdf
    • https://cdn.sqhk.co/tatiwurixiwo/ejfhj4J/linear_equations_word_problems_worksheet_algebra_1.pdf
    • http://sunakijabe.sportsontheweb.net/what_size_screwdriver_for_ps4_controller.pdf
    • http://gifagudilul.mypressonline.com/download_film_nancy_drew_and_the_hidden_staircase_1939_full_movie.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bakajejupuxa.epizy.com/99446287362.pdf
    • http://zewadomi.myartsonline.com/alucinaciones_definicion.pdf
    • https://s3.amazonaws.com/vipuxafol/nulalelowajogebofa.pdf
    • https://s3.amazonaws.com/xoferuzu/dojinoj.pdf
    • http://nusonakogip.epizy.com/27314356513.pdf
    • http://vikipabolukizi.rf.gd/camera_expert_apk_free.pdf
    • http://leribilif.rf.gd/26424670770.pdf
    • http://tivakifuzir.atwebpages.com/jijoferizixovinatesodixi.pdf
    • https://s3.amazonaws.com/xomudufe/vba_ms_word_selection.typetext.pdf
    • https://s3.amazonaws.com/filidabut/roland_td_11kv_price_in_india.pdf
    • https://s3.amazonaws.com/xijalovelokolep/wigerivuwanujepevuboj.pdf
    • https://s3.amazonaws.com/tejuvonixag/how_do_i_see_blocked_numbers_android.pdf
    • https://s3.amazonaws.com/lezopobigeza/kenwood_ddx418_reset.pdf
    • http://rozabakesolunu.rf.gd/dinuwe.pdf
    • https://s3.amazonaws.com/benuka/komakotetixubub.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4d1.bin
17b1e7a8c8a3968365e913b8aad13f5a8ef26e97cd7898b9c28cc939e10f0635		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D1 5584 bytes
font_01_sfnt_off000107f8.bin
baf80d0b0e9c69c9cf3ce1bdc9a6340fa0cb292c197b2f5f07e714ed72b20bb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107F8 12700 bytes

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